Experts explain that mobile signal often drops in elevators due to… (лифт · кабина · шахта)
Experts explain that mobile signal often drops in elevators due to the metal cabin and concrete shaft blocking and reflecting radio waves, making stable connection difficult. The issue is exacerbated by high-frequency signals and changing reception conditions during elevator movement.
Consensus
- Mobile signal frequently drops in elevators.
- The construction of elevator cabins and shafts—specifically metal and concrete materials—interferes with radio wave propagation.
- Metal reflects and blocks electromagnetic waves, while concrete weakens their passage.
- Signal reception changes continuously as the elevator moves through different parts of a building.
- High-frequency signals are particularly affected by these materials.
- Experts from RТУ МИРЭА were consulted on this phenomenon.
Points of divergence
- Smartphones in elevators receive multiple reflected signals with varying delay and power, making it difficult to maintain a stable connection. — riamo
- The signal drop is due to the combined effect of metal reflection and concrete attenuation, resulting in significantly weaker signal strength compared to open spaces. — vm
- Shamil Sultanov, a member of the Association of Lawyers of Russia, stated that residents cannot voluntarily opt out of paying for elevators or garbage chutes because they are considered common property in multi-apartment buildings. — vm
Coverage (2 sources)
- Professor Yurasov Explains Why Cell Signal Disappears in Elevators — РИАМО
- Why Phone Signal Fails in Elevators — Вечерняя Москва